xy720 edited a comment on issue #2399: 【sql mode】|| ‘-’ Symbol in expression，doris return NULL，mysql process by first value URL: https://github.com/apache/incubator-doris/issues/2399#issuecomment-565517113 I think this bug is very similar with issue #2142. (reference pr #2362 ) This bug is not cause by PIPES_AS_CONCAT mode, but the Arithmetic operation processing logic of Doris. In Mysql, we can get result between numeric and non-numeric that: ``` 1 + "10xy" = 11 1 + "10-1" = 11 1 + "xy10" = 1 ``` But in Doris, our logic will get null.
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